Erythematous, Edematous Plaques – Let’s Diagnose

A 66-year-old man went to the doctor after experiencing an extremely itchy rash for the preceding 2 months. On examination, numerous sizable erythematous and edematous plaques with surrounding hyperpigmented patches were noted on his trunk. Some plaques had an arcuate configuration. The patient’s medical history was unremarkable except for a history of thymoma.

Is it erythema gyratum repens, eosinophilic annular erythema, subacute cutaneous lupus erythematosus, or glucagonoma syndrome?

Can you diagnose the patient? Use the Differential Builder in VisualDx to help you.

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